<!DOCTYPE html>  
<html>  
<head>  
<meta charset="UTF-8">  
<title>Insert title here</title>  
</head>  
<body>  
    <div id="allDiv">  
        <input type="text" id="data" value="默认值"> <input type="button"  
            id="send" onclick="send();" value="传值给父窗口">  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
        <h1>弹出框</h1>  
    </div>  
</body>  
<script type="text/javascript">  
    function load() {  
        // 设置滚动条   
        var allDiv = document.getElementById("allDiv");  
        allDiv.style.overflow = "auto";  
    }  
    function send() {  
        var data = document.getElementById("data").value;  
        window.parent.get(data);  
    }  
    window.onload = load;  
</script>  
</html>  